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John EricsonandJakub Kicinski
7f57c650d0
Add a regression test for the unix_listen() state check. The key case is
listen() on a bound socket that has already been connected: it is no
longer in TCP_CLOSE or TCP_LISTEN, so it must fail with EINVAL. A
prepare_peercred() call slipped in ahead of that check once left err at 0
and made listen() silently succeed there instead; this guards against a
repeat.
The neighbouring outcomes are covered too so they cannot regress the same
way: a bound socket in TCP_CLOSE listens fine, calling listen() again on a
socket already in TCP_LISTEN is allowed, and an unbound socket fails with
EINVAL.
Each case runs for both listenable socket types (SOCK_STREAM and
SOCK_SEQPACKET) and both pathname and abstract addresses.
Fixes: fd0a109a0f ("net, pidfs: prepare for handing out pidfds for reaped sk->sk_peer_pid")
Signed-off-by: John Ericson <mail@johnericson.me>
Link: https://patch.msgid.link/20260718182903.2295560-2-John.Ericson@Obsidian.Systems
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
21 lines
403 B
Makefile
21 lines
403 B
Makefile
top_srcdir := ../../../../..
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include $(top_srcdir)/scripts/Makefile.compiler
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cc-option = $(call __cc-option, $(CC),,$(1),$(2))
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CFLAGS += $(KHDR_INCLUDES) -Wall $(call cc-option,-Wflex-array-member-not-at-end)
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TEST_GEN_PROGS := \
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diag_uid \
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msg_oob \
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scm_inq \
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scm_pidfd \
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scm_rights \
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so_peek_off \
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unix_connect \
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unix_connreset \
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unix_listen \
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# end of TEST_GEN_PROGS
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include ../../lib.mk
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